PROGRESS OF VETERINARY SCIENCE AND ART. 
31 
that with a judicious supply of atmospheric air to the lungs, 
a slow administration of this valuable agent is to the horse, 
in the majority of cases, a perfectly safe mode of proceeding, 
and one to which the humane practitioner need not fear to 
resort in the performance of any painful and tedious opera- 
tion. The confidence it gives to the operator, in his know- 
ledge that he is not inflicting pain, stamps this as one of the 
most inestimable boons ever conferred on the animal kingdom. 
The safety of its exhibition, in cases where it is really 
required, lies, in my opinion, in its slow administration at 
all times, keeping in view’ the necessity of a full supply of 
common air to the lungs, by allowing one nostril to be free. 
My remarks as to its safety do not, of course, apply to 
cases where there is organic disease of the heart, air-passages, 
or vessels, which render its administration dangerous to life. 
Waiving all objectionable cases, of which the scientific prac- 
titioner will be the judge, I do think the value of this splendid 
discovery is lost sight of in the uneasy fears of popular pre- 
judice. 
Contemporary Progress of Veterinary Science 
and Art, 
By John Gtamgee, 
Professor of Anatomy and Physiology in the Edinburgh 
Veterinary College. 
{Continued from vol, xxix, p„ 708.) 
/ The second volume of f Lectures on Experimental Phy- 
siology/ by Claude Berna^pl, has been some time on our table, 
to be sifted and digested for the benefit of the readers of the 
Contemporary Progress. The task of analysing such a work 
is a pleasant one, as every page partakes of that peculiar fresh- 
ness inseparable from the workings of those peculiarly suc- 
cessful in original research; who labour constantly in unfolding 
the truths of nature by exclusively consulting nature’s own 
book ; and whose pleasure it is to convey, in the clearest and 
happiest manner, all they have learnt to others that have not 
had the opportunity or the ability to follow in the same path 
of independent study and thought. 
It is but a few months since the second volume of the 
‘ Comparative Physiology of the Domestic Animals/ by 
M. Colin, of the Alfort School, appeared, and it is unsatis- 
